EP 0600110 A1 19940608 - Magnetic speed reducer.
Title (en)
Magnetic speed reducer.
Title (de)
Magnetisches Untersetzungsgetriebe.
Title (fr)
Réducteur magnétique de vitesse.
Publication
Application
Priority
EP 92120393 A 19921130
Abstract (en)
A magnetic speed reducer and torque amplifier adapted to be mounted to the output shaft of a drive motor comprises two sets of metal disks (1, 2) stacked together and interleaved along the shaft (30) of a motor (10), and means (33) for generating an axial magnetic field through said alternated disks. The disks (1, 2) are of a non magnetic base material and provided with a number of adjacent radially extending portions or lines (15, respectively 25) of a ferromagnetic material. The number of radial lines (25) of the stator (k-n) is different from the number (k) of the radial lines on the rotor disks (1), with the difference therebetween being equal to the number of poles of the generated magnetic field. The magnetic gearbox can be incorporated in an axial airgap brushless motor (10), located between stator windings (33) and a free running rotor (34). <IMAGE>
IPC 1-7
IPC 8 full level
H02K 7/11 (2006.01); H02K 19/10 (2006.01); H02K 29/00 (2006.01); H02K 49/06 (2006.01)
CPC (source: EP)
H02K 7/11 (2013.01); H02K 19/103 (2013.01); H02K 49/06 (2013.01)
Citation (search report)
- [Y] US 3375383 A 19680326 - PHILBRICK KENNETH W
- [Y] US 3301091 A 19670131 - REESE GLENN A
- [Y] US 1665613 A 19280410 - TANNER HARRY L
- [A] WO 9012966 A1 19901101 - METOOL PRODUCTS PTY LTD [AU]
- [A] GB 1167805 A 19691022 - JARRET JEAN [FR], et al
- [Y] PATENT ABSTRACTS OF JAPAN vol. 10, no. 150 (E-408)(2207) 31 May 1986 & JP-A-61 009 162 ( AIWA ) 16 January 1986
- [Y] REVUE DE PHYSIQUE APPLIQUEE vol. 22, no. 5, May 1987, PARIS FR pages 359 - 366 GOYET ET AL. 'Expérimentation d'un ensemble machine à réluctance variable-convertisseur à extinction forcée...'
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 92120393 A 19921130